Antifreezing flushing-tank.



' PATENTED OCT. 3, 1905. G. OOBNBN.

ANTIPREEZING PLUSHING TANK.

APPLICATION FILED NOV. 28. 1904.

UNITED STATES PATENT OFFICE.

ANTIFREEZING FLUSHING-TANK.

Specification of Letters Patent.

Patented Oct. 3, 1905.

Application filed November 28. 1904. Serial No. 234,461.

' ject of the German Emperor, residingin Jersey City, in the county of Hudson and State of N ew Jersey,have invented certain new and useful Improvements in Antifreezing Flushing- Tanks; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the ac' com pan ying drawings, and to letters of reference marked thereon, which form a part of this specification. 7

My invention relates to flushing apparatus, and particularly to flushingapparatus in which a tank is employed to hold the water for flushing; and it has for its object to provide an apparatus of this kind in which the tank will be normally empty, being only supplied with the water for flushing just before use, and to do away with the means now commonly employed for starting the flushing which requires the users attention in order that it be operated.

In the accompanying drawings, Figure 1 is a front View of my apparatus, showing certain parts in section; and Fig. 2 shows the valve for controlling the water-supply.

In said drawings, a is a supply-pipe; b, the bowl of the closet; c, the seat, and d a valve located in said pipe and of that well-known typo wherein a spring-actuated valve proper, e, normally closes off the way through pipe at and only opens said way when actuated by the application of sufficient force against the seat, which when down rests upon its stemf. Said valve (Z also has a drain-opening g, discharging into the bowl I) and so controlled by the valve proper, a, that it is closed by said valve when the way is open through pipe a, but open to drain ed the water in pipe to above valve (Z when valve proper, e, is closed.

/1. is the flush tank or cistern, which latter is adapted to discharge into the bowl through the usual l'lnsh-pipe i. The couplingj,where by said flush-pipe is connected with the bottom of the tank, comprises a funnel-shaped valve-chamber Z', whose flaring end opens into the tank.

Z is a valve adapted to seat in valve-chamber 7 to cut off the discharge of water from the tank into pipe i. For a reason hereinafter explained it is preferable that this be a buoyant body, and its lower end is made frustoconical, so as to lit into the flaring portion of the valve-chamber k, the proper seating of the valve being always insured by a tubular projection m on its lower end which extends into the valve-chamber and has one or more ports a.

0 is a cylinder which is closed at the top by a cap p and which forms, in effect, the upper termination of pipe (0; Said cylinder and pipe (0 are connected together and fixed in the tankbottom by a coupling q. Attached to the side of said cylinder is the usual discharge-valve r for the pipe at, the said valve being under the control of a float s, which when raised upon the filling'of the tank closes said valve 7' and when allowed to fall to the bottom of the tank upon ,the emptying of the latter opens the valve. In the cylinder 0 is a piston 25, which is pressed downwardly by a spiral spring 6, coiled in the cylinder between said piston and the cap 1) and which has a stem a projecting up through the cap. The upper end of the piston 23 and the upper end of the valve Z are pivotally connected to a lever-o on opposite sides of its fulcrum 11;, which latter is in a bracket 0, attached to the tank.

In operation when valve (Z is actuated by pressure exerted on seat 0 the water-pressure comes directly on the piston 25, which rises and through lever o depresses valve Z and,

causes it to seat, and thus cutoff the discharge from the tank. The tank is assumed to be empty, so that float s is down and the valve '1' open to admit the water from pipe (0 to the tank. The tank now fills until the float rises sufliciently so that valve r is made to cut off the water supply from pipe (0. Upon the pressure now bein withdrawn from seat 0 valve (Z will close and cut off the pressure, at the same time permitting the water in pipe to above valve Z to drain off into the bowl through opening g. The spring 25, which has up to this time been compressed by the waterpressure forcing up the piston 25. now forces the piston down, which action causes the valve Z to be lifted through lever 2), and so open the discharge from the tank through the flushingpipe, leaving the tank empty and the whole apparatus in condition for a repetition of the operation. The buoyancy of the valve assists the spring 25 in making the discharge of the tank prompt and sure. Valve (Z, it will be observed, not only permits the draining of pipe to, so that said pipe, as well as the tank, is normally free of water, and thus proof against freezing, but provides a quick relief for the water in pipe (0 above it, so that the piston may descend and thus permit valve Z to rise adapted to open said valve and being actuated by the pressure of Water admitted through said pipe to close said valve, and means for effecting the release of Water in said pipe between said second-named valve and. the controlling means after the closing of said valve, substantially as described.

In testimony that I claim the foregoing I have hereunto set my hand this 1st day of November, 1904.

GERHARD COENEN.

\Vitnesses:

ALFRED GARTNER,

J OHN \V. STEWARD. 

